EP2576318B1 - Bremssystem für einen kinderwagen - Google Patents

Bremssystem für einen kinderwagen Download PDF

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Publication number
EP2576318B1
EP2576318B1 EP10733021.9A EP10733021A EP2576318B1 EP 2576318 B1 EP2576318 B1 EP 2576318B1 EP 10733021 A EP10733021 A EP 10733021A EP 2576318 B1 EP2576318 B1 EP 2576318B1
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EP
European Patent Office
Prior art keywords
blocking
locking
brake system
movement
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10733021.9A
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English (en)
French (fr)
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EP2576318A1 (de
Inventor
Gilles Henry
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BABYZEN
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BABYZEN
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B62B9/082—Braking mechanisms; Locking devices against movement foot operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/08—Braking mechanisms; Locking devices against movement
    • B62B9/087—Braking mechanisms; Locking devices against movement by locking in a braking position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0433—Braking mechanisms; Locking devices against movement foot operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/04—Braking mechanisms; Locking devices against movement
    • B62B5/0457—Braking mechanisms; Locking devices against movement by locking in a braking position
    • B62B5/0461—Braking mechanisms; Locking devices against movement by locking in a braking position with positive engagement

Definitions

  • the invention relates to braking systems and strollers for children equipped with such systems.
  • Strollers typically include one or two front legs and two rear legs with wheels. To meet the safety requirements, a child-friendly stroller braking system must act on both rear wheels simultaneously and must be enabled or disabled on both wheels by a single operation.
  • Still other systems include a cable for simultaneously interconnecting and operating the locking elements acting on each of the two rear wheels.
  • cable braking devices are complex to mount and pose reliability problems.
  • An example of such a system is described in the document GB 2,351,131 which describes a braking system according to the preamble of claim 1.
  • braking systems include one or more pedals or crossbars located between the two rear wheels.
  • the size of the pedals or transverse bars arranged between the two rear wheels prevent users from leaning on the connecting bar between these wheels, for example to lift the stroller to the passage of an obstacle.
  • the invention aims to overcome these disadvantages by providing a reliable braking system, robust, compact, requiring a limited number of parts, without spring or cable and is easy to use.
  • the braking system is relatively simple since it uses only a small number of parts, and does not require a cable or return means since the transmission is performed by means of a torsionally rigid shaft which cooperates directly with the locking elements so as to drive them simultaneously to their release position or to their wheel locking position.
  • the actuating means is mounted on a rear leg so that its provision does not prevent to bear on a connecting bar connecting the two rear legs.
  • the locking or unlocking operations of the braking system are simple since the actuating element can be fixed sufficiently high on the rear leg so as to be easily accessible, in particular to raise it when the brake system is released. .
  • the system comprises a second actuating element movably mounted on the second leg between a high position and a low position and cooperating with the second locking element of such that movement of said second actuating member from its upward position to its down position moves the second locking member from its locking position to its release position, said motion transmitting means being arranged to simultaneously drive the first member locking to its release position upon movement of the second locking member to its release position.
  • this embodiment is particularly simple to use since it suffices to exert a pressure from top to bottom on the first actuating element to lock the braking system and to exert a pressure up and down on the second actuating element for unlocking the brake system.
  • the first and second actuating elements reversibly cooperate respectively with the first and the second locking element so that the movement of the first locking element towards its release position causes the movement of the first actuating element towards its high position and that the movement of the second locking element towards its wheel locking position causes the movement of the second actuating element towards its high position.
  • the braking system comprises only one actuating element. Also, this embodiment has only a small number of parts.
  • the motion transmission kinematic chain is completely reversible, which makes it possible to dispense with the return means.
  • the movement transmission members are racks cooperating with a serrated end integral with the shaft.
  • the locking elements are slidably mounted inside the rear legs.
  • the brake system is integrated satisfactorily to the stroller.
  • the actuating member is rotatably mounted on the first leg and carries a movable pin in a bore formed in the first locking member.
  • the actuating member is rotatably mounted on the first leg and has a bore cooperating with a pin on the first locking member.
  • the wheels are each equipped with a notched rim and the locking elements each comprise a finger arranged to engage in a notch of the notched rim so as to block the rotation of the wheel, when the locking element is in its blocking position.
  • the locking elements are simple and reliably ensure a locking rotation of the rear wheels.
  • the locking elements are movable from the bottom upwards during their movement towards their wheel locking position, the fingers of the locking elements coming, in the locked position, engage in a notch of the notched rim.
  • the rotating mobile shaft is positioned inside a cross member connecting the first and second rear legs.
  • the drive shaft is hidden and protected from any damage when handling the stroller.
  • the first and the second locking elements are identical parts, which in particular makes it possible to reduce the production costs of the braking system and to facilitate its assembly.
  • the invention relates to a stroller equipped with a locking system according to the first aspect of the invention.
  • a stroller for children generally comprises a front wheel set consisting of one or two front legs equipped with wheels and a rear wheel set consisting of two legs 1,1 'each equipped with at least one wheel 2, 2'.
  • the figures 1 a and 1b illustrate the general operation of a braking system according to a first embodiment of the invention and represent the rear axle of a child stroller, equipped with such a system, seen in rear perspective.
  • the rear stroller has a right rear leg 1 and a left rear leg 1 '.
  • Each of the rear legs 1, 1 ' is equipped with a wheel 2, 2' movable in rotation along the axis A.
  • the wheels 2, 2 ' are each equipped with a notched rim 3, 3' intended to cooperate with a locking element 11, 11 ', when the latter is in the locking position, so as to prevent the wheel 2, 2' from rotating.
  • the rear legs 1, 1 ' have at their lower end connecting pieces 8, 8' having generally the shape of a bracket whose first branch extends in the extension of the lower part of leg 1, 1 'and whose second leg extends horizontally transversely to the stroller.
  • a crossbar 5 extends between the two rear legs 1, 1 ', at the wheels 2, 2' to reinforce the rigidity of the stroller.
  • the ends of the crosspiece 5 are housed and fixed inside the second branch of the connecting pieces 8, 8 '.
  • the crossbar 5 is for example pierced with holes 31, 31 ', for fixing the cross member 5 on each of the connecting blocks 8, 8', by means of rivets 32, 32 'passing through each hole on the one hand riveting 22, 22 'connecting blocks 8, 8', and secondly the holes 31, 31 '(see figure 2 ).
  • the braking system comprises a first 9 and a second 10 actuating elements respectively mounted on the first 1 and second 1 'rear legs.
  • the actuating elements 9, 10 are movable between a high position and a low position.
  • the first actuating element 9 or locking pedal is in the up position and the second actuating element 10 or unlocking pedal is in the low position.
  • the two actuating elements may in particular have different colors.
  • the figure 2 illustrates, in exploded view, all the elements of the braking system according to the embodiment shown.
  • the braking system comprises a first 11 and a second 11 'movably mounted locking elements, respectively on the first 1 and the second 1' legs, between a wheel lock position and a release position.
  • the locking elements 11, 11 ' are slidably mounted vertically relative to the rear legs 1, 1'.
  • the connecting blocks 8, 8 ' are hollow moldings forming the lower part of the rear legs 1, 1' inside which the locking elements 11, 11 'are slidably mounted.
  • the connecting blocks 8, 8 'according to the invention are preferably identical.
  • the locking elements 11, 11 ' comprise a locking pin 14, 14' which is arranged to engage in a notch 4, 4 'of the notched rim 3, 3' so as to block the rotation of the wheel, when the locking element 11, 11 'is in its locking position.
  • the locking fingers 14, 14 ' are formed at the lower end of the locking elements 11, 11' and protrude substantially horizontally, outwardly.
  • the notches 4, 4 'of the notched rim 3, 3' are arranged radially about the axis A of the wheels 2, 2 '.
  • the locking elements 11, 11 ' are movable from the bottom upwards during their movement from their release position to their wheel locking position, along an axis passing through that of the wheels 2, 2' and perpendicular to the latter.
  • the fingers 14, 14 'of the locking elements 11, 11' move radially with respect to the axis A of the wheels 2, 2 'and come, in the locked position, to fit in one of the notches 4 , 4 '.
  • the locking elements 11, 11 are movable from top to bottom during their movement from their release position to their locking position, or holding the locking fingers 14, 14 'to the lower end of the locking elements 11, 11 'with notches 4, 4' disposed at the periphery of the rim 3, 3 ', or conversely by arranging the locking fingers 14, 14 "on an intermediate portion locking elements 11, 11 'with notches 4, 4' arranged around the axis A of the wheel 2, 2 ', however, the illustrated embodiment will be preferred since, in this case, the locking elements 11 , 11 'can not move to their wheel lock position, undesirably, under the effect of gravity when moving the stroller.
  • the locking elements 11, 11 ' are identical parts, which can be used indifferently as first or second locking element 11, 11'.
  • the locking elements 11, 11 ' are connected by motion transmission means which are arranged to simultaneously drive the second blocking element 11' towards its blocking position during the movement of the first blocking element 11 towards its blocking position and simultaneously driving the first locking element 11 towards its release position during the movement of the second locking element 11 'towards its release position.
  • the braking system according to the invention is adapted to the safety requirements for pushchairs since it allows both wheels 2, 2 'to be blocked simultaneously.
  • the transmission means 25 of the movement comprise a shaft 26 movable in rotation and transmission members 17, 17 'of the movement, carried by the locking elements 11, 11', engaged with said shaft 26.
  • the shaft 26 is a torsionally rigid shaft whose ends are rotatably mounted on the rear legs 1, 1 '.
  • the shaft 26 extends substantially parallel to the axes A of rotation of the wheels 2, 2 '.
  • the shaft 26 is equipped at each of its ends with a serrated tip 28, 28 'fixed to said shaft 26.
  • each of the ends 27, 27' of the shaft 26 fits into a housing 29, 29 'of the tip 28, 28', of complementary shape to said ends 27, 27 'of the shaft 26.
  • the ends 27, 27 'of the shaft 26 are for example of flattened shape.
  • the serrated tips 28, 28 'each comprise a pin 30, 30' having a cylindrical shape, substantially cylindrical or equivalent, mounted free to rotate in the hole 19, 19 'formed in the rear legs 1, 1', in the blocks. link 8, 8 'for example, to support the shaft 26, on both sides.
  • the serrated tips 28, 28 ' have teeth intended to cooperate with racks 17, 17' formed on the locking elements 11, 11 'so as to transmit the movement between the locking elements 11, 11' and the shaft 26.
  • the blocking elements 11, 11 ' have a window 16, 16' of substantially oval shape extending substantially along the axis of translation of the locking means allowing the passage of the end pieces 28, 28 'through the blocking elements 11. , 11 '.
  • the racks 17, 17 ' are formed on the inner side faces of the window 16, 16'.
  • the serrated tips 28, 28 ' have a portion of their perimeter teeth engaged with a rack 17, 17'.
  • the movement transmission shaft 26 is housed inside the crossbar 5.
  • the transmission shaft 26 remains hidden and protected any deterioration during the handling of the stroller, especially when passing obstacles such as sidewalks, or when the user places a foot on the crossbar 5 to facilitate the tilting back of the stroller.
  • the actuating elements 9, 10 are rotatably mounted on the rear legs 1, 1 '.
  • the actuating elements 9, 10 are equipped with an axis of rotation 23, 23 'passing through an orifice 20, 20' formed at the lower end of the rear legs 1, 1 'so as to allow the pivoting said actuating elements 9, 10 around said axes of rotation 23, 23 '.
  • the orifices are here directly formed in the connecting pieces 8, 8 '.
  • the actuating elements 9, 10 are equipped with a pin 24, 24', formed by a rivet for example, passing through bores 15, 15 'formed in the locking elements 11, 11 '.
  • the bores 21, 21 'of arcuate form are here formed in the connecting blocks 8, 8'.
  • the same effect is obtained if the locking element 11, 11 'is equipped with a pin 24, 24' cooperating with a bore 15, 15 'located in the elements of FIG. actuating 9, 10.
  • the transmission of the movement between the actuating element 9 and the locking element 11 is also reversible, that is to say that on the one hand the movement of the actuating element 9 from its high position towards its low position causes the movement of the locking element 11 between its release position and its wheel lock position and that, on the other hand, the movement of the locking element 11 of its wheel lock position. towards its release position causes the movement of the actuating element 9 from its low position to its high position.
  • the transmission of the movement between the actuating element 10 and the locking element 11 ' is reversible, that is to say that on the one hand the movement of the actuating element 10 from its upper position towards its lower position causes the movement of the locking element 11 'between its wheel lock position and its release position and that, on the other hand, the movement of the locking element 11' from its release position towards its wheel locking position causes the actuating element 10 to move from its low position to its high position.
  • the first actuating element 9 is movable from its high position to its low position to move the first locking element 11 from its release position to its locking position and the second actuating element 10 is movable from its position. high to its low position to move the second locking member 11 'from its locking position to its release position.
  • the user can simultaneously move the locking elements 11, 11 'to their blocking position or to their release position by exerting a pressure from top to bottom respectively on the locking pedal 9 or the unlocking pedal 10.
  • the manipulations of the braking system according to the invention are therefore particularly simple, and do not risk injuring the foot or the shoe of the 'user.
  • the rear wheels 2, 2 ' are respectively equipped with an axis 12, 12' mounted perpendicularly to the notched rims 3, 3 '.
  • the connecting blocks 8, 8 ' have orifices 18, 18' allowing the passage of the axes of the wheels.
  • the axes 12, 12 'of the wheels pass through the windows 16, 16' of the locking elements 11, 11 '.
  • the braking system further comprises at least one safety device to prevent inadvertent locking or unlocking.
  • a safety device to prevent inadvertent locking or unlocking.
  • Such a device must offer the necessary resistance to maintain the locking device 6 and the unlocking device 7 alternately in the release position ( Figures 3a and 4a ) and blocking ( Figures 3b and 4b ), without preventing the locking and unlocking operations when the user exerts sufficient pressure on the locking pedal 9 or the unlocking pedal 10.
  • this mechanism can be a ratchet mechanism, immobilizing either the locking means 11, 11 ', ie the pedals 9, 10, with respect to the connecting blocks 8, 8'.
  • FIGS. 3a and 3b illustrate the detailed operation of the braking system at the level of the first rear leg 1 while the Figures 4a and 4b illustrate the detailed operation of the braking system at the second rear leg 1 '.
  • the locking pedal 9 When the braking system is in the release position, the locking pedal 9 is in the raised position, or raised, and the locking means 11 is in the low release position. In this position, the teeth of the serrated tip 28 cooperate with the rack 17 of the locking means 11.
  • the braking system is thus again in the positions illustrated respectively by the Figures 3a and 4a .
  • the embodiment just described has the further advantage of being able to be locked as well as unlocked by a simple pressure of the foot from top to bottom, which avoids any risk of damaging the shoe or injure the user's foot during this last operation.
  • FIGS. 6a and 6b illustrate the general operation of a braking system according to a second embodiment of the invention and show the rear axle of a stroller for children, equipped with such a system, seen in rear perspective.
  • This embodiment is identical to that described in the Figures 1 to 5 except that the second actuating element 10 has been removed. It is therefore the first actuating element 9 which is actuated both to lock or unlock the braking system. Indeed, the motion transmission kinematic chain being always completely reversible, the movement of the actuating element 9 towards its lower position ( Figure 6b ) causes the simultaneous movement of the two blocking elements 11, 11 'towards their blocking position, and conversely the movement of the actuating element 9 towards its upper position ( Figure 6a ) causes the simultaneous movement of the two locking elements 11, 11 'to their release position.
  • This second embodiment does not allow the unlocking is done as locking by pressing up and down on a second pedal, but it has the advantage of requiring even fewer parts.
  • this type of braking system can easily adapt to other types of self-supporting trolleys with wheels.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Handcart (AREA)

Claims (12)

  1. Bremssystem für einen Handwagen, der mindestens ein erstes (1) und ein zweites (1') hinteres Bein aufweist, die jeweils mit mindestens einem Rad versehen sind, wobei das System umfasst:
    - ein erstes (11) und ein zweites (11') Feststellungselement, die gleitend auf dem ersten (1) bzw. zweiten (1') Bein zwischen einer Feststellungsposition des Rades und einer Freigabeposition montiert sind;
    - ein erstes Betätigungselement (9), das beweglich auf dem ersten Bein (1) zwischen einer oberen Position und einer unteren Position montiert ist und mit dem ersten Feststellungselement (11) derart zusammenwirkt, dass die Bewegung des ersten Betätigungselements (9) von seiner oberen Position in seine untere Position das erste Feststellungselement (11) von seiner Freigabeposition in seine Feststellungsposition verschiebt, und dass umgekehrt die Bewegung des ersten Betätigungselements (9) von seiner unteren Position in seine obere Position das erste Feststellungselement (11) von seiner Feststellungsposition in seine Freigabeposition verschiebt;
    - Mittel zur Übertragung der Bewegung, die derart angeordnet sind, um gleichzeitig das zweite Feststellungselement (11') in seine Feststellungsposition bei der Bewegung des ersten Feststellungselements (11) in seine Feststellungsposition anzutreiben, und gleichzeitig das zweite Feststellungselement (11') in seien Freigabeposition bei der Bewegung des ersten Feststellungselements (11) in seine Freigabeposition anzutreiben;
    wobei das System dadurch gekennzeichnet ist, dass die Bewegungsübertragungsmittel eine drehbewegliche Welle (26) und Bewegungsübertragungselemente (17, 17'), die von den Feststellungselementen (11, 11') getragen werden, umfassen, die mit der drehbeweglichen Welle (26) ein Eingriff sind.
  2. Bremssystem nach Anspruch 1, dadurch gekennzeichnet, dass es ein zweites Betätigungselement (10) umfasst, das beweglich auf dem zweiten Bein (1') zwischen einer oberen Position und einer unteren Position montiert ist und mit dem zweiten Feststellungselement (11') zusammenwirkt, so dass die Bewegung des zweiten Betätigungselements (10) von seiner oberen Position in seine untere Position das zweite Feststellungselement (11') von seiner Feststellungsposition in seine Freigabeposition verschiebt, wobei die Bewegungsübertragungsmittel derart angeordnet sind, dass sie gleichzeitig das erste Feststellungselement (11) in seine Freigabeposition bei der Bewegung des zweiten Feststellungselements (11') in seine Freigabeposition antreiben.
  3. Bremssystem nach Anspruch 2, dadurch gekennzeichnet, dass das erste (9) und das zweite (10) Betätigungselement auf reversible Weise mit dem ersten (11) bzw. dem zweiten (11') Feststellungselement zusammenwirken, so dass die Bewegung des ersten Feststellungselements (11) in seine Freigabeposition die Bewegung des ersten Betätigungselements (9) in seine obere Position bewirkt, und dass die Bewegung des zweiten Feststellungselements (11') in seine Radfeststellungsposition die Bewegung des zweiten Betätigungselements (10) in seine obere Position bewirkt.
  4. Bremssystem nach Anspruch 1, dadurch gekennzeichnet, dass es nur ein einziges Betätigungselement (9) umfasst.
  5. Bremssystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Bewegungsübertragungsmittel Zahnstangen (17, 17') sind, die mit einem gezahnten Ansatz (28, 28'), der mit der Welle (26) verbunden ist, zusammenwirken.
  6. Bremssystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Feststellungselemente (11, 11') gleitend innerhalb der hinteren Beine (1, 1') montiert sind.
  7. Bremssystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das erste Betätigungselement (9) drehbar auf dem ersten Bein (1) montiert ist und eine Bohrung umfasst, die mit einem Stift zusammenwirkt, der sich auf dem ersten Feststellungselement (11) befindet, oder einen Stift (24) trägt, der in einer Bohrung (15) beweglich ist, die in dem ersten Feststellungselement (11) ausgebildet ist.
  8. Bremssystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Räder (2, 2') jeweils mit einer Felge (4, 4') mit Kerben, die auf dem Rad (2, 2') befestigt ist, versehen sind, und dass die Feststellungselemente (11, 11') jeweils einen Finger (14, 14') umfassen, der derart vorgesehen ist, dass er in eine Kerbe der Felge (4, 4') mit Kerben eingreift, um die Drehung des Rades (2, 2') festzustellen, wenn sich das Feststellungselement (11, 11') in seiner Feststellungsposition befindet.
  9. Bremssystem nach Anspruch 8, dadurch gekennzeichnet, dass die Verriegelungsfinger (14, 14') derart vorgesehen sind, dass sie entlang einer Radialachse in Bezug zu jener der Räder (2, 2') gleiten.
  10. Bremssystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die drehbewegliche Welle (26) innerhalb einer Querstrebe positioniert ist, die das erste (1) und zweite (1') hintere Bein verbindet.
  11. Bremssystem nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das erste (11) und zweite (11') Feststellungselement identische Teile sind.
  12. Handwagen, dadurch gekennzeichnet, dass er mit einem Bremssystem nach einem der Ansprüche 1 bis 11 ausgestattet ist.
EP10733021.9A 2010-05-28 2010-05-28 Bremssystem für einen kinderwagen Active EP2576318B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2010/000403 WO2011148062A1 (fr) 2010-05-28 2010-05-28 Systeme de freinage pour poussette

Publications (2)

Publication Number Publication Date
EP2576318A1 EP2576318A1 (de) 2013-04-10
EP2576318B1 true EP2576318B1 (de) 2015-10-14

Family

ID=43568734

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EP10733021.9A Active EP2576318B1 (de) 2010-05-28 2010-05-28 Bremssystem für einen kinderwagen

Country Status (6)

Country Link
US (1) US9193370B2 (de)
EP (1) EP2576318B1 (de)
JP (1) JP5636495B2 (de)
CN (1) CN103079929B (de)
ES (1) ES2558340T3 (de)
WO (1) WO2011148062A1 (de)

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CN103213611B (zh) * 2012-01-18 2015-09-16 明门香港股份有限公司 车轮防假刹车装置
CN106143580A (zh) * 2015-03-25 2016-11-23 王宣 儿童推车的万向轮刹车装置
CN105109535B (zh) * 2015-09-08 2017-08-22 国网山东省电力公司济南供电公司 一种电力施工转运车用锁轮刹车器
US10994763B2 (en) 2016-07-27 2021-05-04 Kolcraft Enterprises, Inc. Foldable strollers with removeable seats and related methods
US10960913B2 (en) 2016-07-27 2021-03-30 Kolcraft Enterprises, Inc. Foldable strollers and related methods
US11059510B2 (en) 2016-07-27 2021-07-13 Kolcraft Enterprises, Inc. Strollers with removable seats and related methods
TWI594910B (zh) * 2017-03-23 2017-08-11 Shui-Sheng Bao Wheel lock structure prevents accidental slipping of the cart
US11173747B2 (en) 2017-05-04 2021-11-16 Kids2, Inc. Braking and locking system for caster wheels
CN106985892B (zh) * 2017-05-17 2023-01-03 苏州爱瑞可婴童用品有限公司 童车的刹车机构
US10399677B2 (en) * 2017-07-05 2019-09-03 Panasonic Avionics Corporation Cart for moving along a surface and method for moving a cart along a surface
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ES2558340T3 (es) 2016-02-03
WO2011148062A1 (fr) 2011-12-01
JP2013527080A (ja) 2013-06-27
CN103079929A (zh) 2013-05-01
JP5636495B2 (ja) 2014-12-03
CN103079929B (zh) 2016-02-10
US20130112509A1 (en) 2013-05-09
EP2576318A1 (de) 2013-04-10

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